Oil drying oil refers to the high moisture of water to a suitable dehydration process. When the oil is sometimes harvested during the rainy season, so the high moisture content. For safe storage, making it suitable for water, dry it is essential.

Heating oil use drying equipment, some of which can vaporize the water, while the oil ambient air humidity, surface moisture must be less than oil at this temperature, so that the formation of the humidity difference, the oil in the water can continue to vaporize and escape into atmosphere, and the unit of time, the amount of oil the surface through the air, the more the faster the oil dewatering, drying equipment dry hot air forced through the exercise, is the use of this principle.
Exercise equipment commonly used in dry rotary dryer, vibrating fluid bed dryer and flat dryer.